Train-pipe construction



Sept. 15, 1925. $553,631

w. P. REILLY TRAIN FIFE CONSTRUCTICN Filed Oct. 9, 1923 INVENTORh/lLL/HM I? RE/LLY ATTORNEY Patented Sept. 1925. V

UNITED STATES WILLIAM P. REILLY, OF TACOMA, WASHINGTON.

TRAIN-PIPE CONSTRUCTION.

Application filed October 9, 1923. Serial No. 667,484.

To all whom it may concern:

Be it known that I, WILLIAM P. REILLY,

a citizen of the United States, and a resident of Tacoma, Pierce County,Washing- 5 ton, have invented certain new and useful Improvements inTrain-Pipe Constructions, of which the following is a specification.

This invention relates to improvements in train pipe construction, moreparticularly to the embodiment of the signal and brake air lines on atrain in a single pipe where previously two have been used.

The object of the invention resides 1n the provision of a longitudinallydivided tram pipe through which the slgnal and brake air may flow,together with similarly d1- vided connections between cars andconnecting valves each with a single rotary plug valve for controllingboth the brake and signal air.

Other objects of the invention reside in the details of construction andcombination of parts as described in the following specification and asset forth in the claim terminating the same.

In accomplishing these and other objects of the invention, I haveprovided the improved details of construction, the preferred forms ofwhich are illustrated in the accompanying drawings, wherein- Figure 1illustrates a part of a train pipe line embodied by the presentinvention, some of the parts being in section for betterillustration.

Figure 2 is a sectional view, illustrating the construction of one ofthe connecting valves used in the system.

Referring more in detail to the drawings 1 and 2, respectively,designate pipes that lead froma signal line mechanism and the brakecontrol operating valve, neither of which are herein illustrated, butwhich would be of the type usually used in air brake systems of railwaytrains. These pipes connect with one end of a train pipe 3 with whichconnection may be made as by means of the branch pipe 4 with the brakecylinder, not shown, wherein there is a piston operated by air pressureto actuate the wheel braking mechanism. The pipe 3 is longitudinallydivided by a partition plate 5 thereby providing separate air passages 6and 7, with which,

at one end of the line,

the pipes 1 and 2, respectively, communicate.

8 designates what may be a flexible coupling pipe for use between thecars of a tram for connecting the pipes 3 with which each car would beequipped. Superimposed between the pipes 3 and 8 is a connecting valve9, the channel of which is divided by longitudinally extending partition10 forming two separate channels that connect the channels of the pipes3 and 8. This valve has a single plug 11 with a divided port forcontrolling both valve passages, and the plug is rotatable by means of ahandle 12 to control the passage of air through the train and signallines.

To each train pipe there is also connected a branch 15 that providesconnection be tween air channels 6 and a signalling device, not shown.The method of using these devices and the brake control mechanism iswell known and will not be described farther.

Assuming that the cars of a train are so equipped and that the trainlines between cars are connected by the flexible couplings, it isapparent that a single pipe is employed where previously two have beenrequired. It is also apparent that a single valve and connecting hoseare used where previously there were two. By using the construction,above described, the costof equipment is greatly reduced, and a moreeasy connecting system is provided.

Having thus described my invention, What I claim as new therein anddesire to secure by Letters Patent, is:

In a train control and signal system, the combination with signal andbrake control air lines of a train line pipe divided longitudinally toform separate passages having connection respectively with said signaland brake control air lines. a flexible similarly divided tube forjoining the train line pipes of adjacent cars in a train and a valvehousing connecting the train line pipe and connecting pipe and havingvalve operable to control the both of said passages.

Signed at Tacoma, Pierce County, VVashington, this 28th day of September1923.

flow through WILLIAM P. REILLY.

a single plug,

